import turtle as t

t.forward(50)
t.right(90)

t.forward(50)
t.left(90)

t.forward(50)
t.left(90)

t.forward(50)
t.right(90)

t.forward(50)
t.right(90)

t.forward(100)
t.right(90)

t.forward(150)
t.right(90)

t.forward(100)
t.right(90)

t.done()